Add Prettier shared config package (#20026)

* Add Prettier shared config package

* Update packages/prettier-config/README.md

Co-Authored-By: Grzegorz (Greg) Ziółkowski <grzegorz@gziolo.pl>

* Update README.md

* Use @wordpres/prettier-config with @wordpress/scripts

Co-authored-by: Grzegorz (Greg) Ziółkowski <grzegorz@gziolo.pl>

docs/manifest.json

@@ -1445,6 +1445,12 @@
 		"markdown_source": "../packages/postcss-themes/README.md",
 		"parent": "packages"
 	},
+	{
+		"title": "@wordpress/prettier-config",
+		"slug": "packages-prettier-config",
+		"markdown_source": "../packages/prettier-config/README.md",
+		"parent": "packages"
+	},
 	{
 		"title": "@wordpress/primitives",
 		"slug": "packages-primitives",

package.json

@@ -105,6 +105,7 @@
 		"@wordpress/library-export-default-webpack-plugin": "file:packages/library-export-default-webpack-plugin",
 		"@wordpress/npm-package-json-lint-config": "file:packages/npm-package-json-lint-config",
 		"@wordpress/postcss-themes": "file:packages/postcss-themes",
+		"@wordpress/prettier-config": "file:packages/prettier-config",
 		"@wordpress/scripts": "file:packages/scripts",
 		"babel-loader": "8.0.6",
 		"babel-plugin-emotion": "10.0.27",

packages/prettier-config/.npmrc

@@ -0,0 +1 @@
+package-lock=false

packages/prettier-config/CHANGELOG.md

@@ -0,0 +1,5 @@
+## Master
+
+### Initial Release
+
+- The config was extracted from `@wordpress/scripts` package ([#20026](https://github.com/WordPress/gutenberg/pull/20026)).

packages/prettier-config/README.md

@@ -0,0 +1,27 @@
+# Prettier Config
+
+WordPress Prettier shareable config for [Prettier](https://prettier.io).
+
+## Installation
+
+Install the module
+
+```shell
+$ npm install @wordpress/prettier-config --save-dev
+```
+
+## Usage
+
+Add this to your `package.json` file:
+
+```json
+prettier": "@wordpress/prettier-config"
+```
+
+Alternatively, add this to `.prettierrc` file:
+
+```
+extends @wordpress/prettier-config
+```
+
+<br/><br/><p align="center"><img src="https://s.w.org/style/images/codeispoetry.png?1" alt="Code is Poetry." /></p>

packages/prettier-config/lib/index.js

@@ -0,0 +1,12 @@
+module.exports = {
+	useTabs: true,
+	tabWidth: 4,
+	printWidth: 80,
+	singleQuote: true,
+	trailingComma: 'es5',
+	bracketSpacing: true,
+	parenSpacing: true,
+	jsxBracketSameLine: false,
+	semi: true,
+	arrowParens: 'always',
+};

packages/prettier-config/package.json

@@ -0,0 +1,31 @@
+{
+	"name": "@wordpress/prettier-config",
+	"version": "0.0.1",
+	"description": "WordPress Prettier shared configuration.",
+	"author": "The WordPress Contributors",
+	"license": "GPL-2.0-or-later",
+	"keywords": [
+		"wordpress",
+		"prettier",
+		"prettier-config"
+	],
+	"homepage": "https://github.com/WordPress/gutenberg/tree/master/packages/prettier-config/README.md",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/WordPress/gutenberg.git",
+		"directory": "packages/prettier-config"
+	},
+	"bugs": {
+		"url": "https://github.com/WordPress/gutenberg/issues"
+	},
+	"engines": {
+		"node": ">=10"
+	},
+	"files": [
+		"lib/index.js"
+	],
+	"main": "lib/index.js",
+	"publishConfig": {
+		"access": "public"
+	}
+}

packages/prettier-config/test/index.js

@@ -0,0 +1,15 @@
+/**
+ * External dependencies
+ */
+import { isPlainObject } from 'lodash';
+
+/**
+ * Internal dependencies
+ */
+import config from '../lib/';
+
+describe( 'prettier config tests', () => {
+	it( 'should be an object', () => {
+		expect( isPlainObject( config ) ).toBeTruthy();
+	} );
+} );

packages/scripts/CHANGELOG.md

@@ -1,5 +1,9 @@
 ## Master
 
+## Internal
+
+- Package depends now on the shared Prettier config exposed in `@wordpress/prettier-config` dependency ([#20026](https://github.com/WordPress/gutenberg/pull/20026)).
+
 ## 7.1.2 (2020-02-25)
 
 ### Bug Fixes

packages/scripts/config/.prettierrc.js

@@ -1,12 +1 @@
-module.exports = {
-	useTabs: true,
-	tabWidth: 4,
-	printWidth: 80,
-	singleQuote: true,
-	trailingComma: 'es5',
-	bracketSpacing: true,
-	parenSpacing: true,
-	jsxBracketSameLine: false,
-	semi: true,
-	arrowParens: 'always',
-};
+module.exports = require( '@wordpress/prettier-config' );

packages/scripts/package.json

@@ -39,6 +39,7 @@
 		"@wordpress/eslint-plugin": "file:../eslint-plugin",
 		"@wordpress/jest-preset-default": "file:../jest-preset-default",
 		"@wordpress/npm-package-json-lint-config": "file:../npm-package-json-lint-config",
+		"@wordpress/prettier-config": "file:../prettier-config",
 		"babel-jest": "^24.9.0",
 		"babel-loader": "^8.0.6",
 		"chalk": "^2.4.2",